Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
090019goodexcellent21excellent
080019goodexcellent31excellent
070022goodexcellent31excellent
060036goodexcellent31excellent
050048lightly pollutedexcellent51excellent
040063moderately pollutedexcellent61excellent
030071moderately pollutedexcellent61excellent
020075moderately pollutedexcellent71excellent
010070moderately pollutedexcellent71excellent
000065moderately pollutedexcellent71excellent
230064moderately pollutedexcellent71excellent
220072moderately pollutedexcellent71excellent
210075moderately pollutedexcellent61excellent
200065moderately pollutedexcellent51excellent
190063moderately pollutedexcellent51excellent
180056lightly pollutedexcellent51excellent
170047lightly pollutedexcellent71excellent
160035goodexcellent61excellent
150033goodexcellent61excellent
140034goodexcellent61excellent
130037lightly pollutedexcellent61excellent
120034goodexcellent61excellent
110044lightly pollutedexcellent61excellent
100036goodexcellent61excellent